Finding the Fourth Proportional to 77,916, 107,524.12 and 42,105.92

Step by Step Solution

1. Step 1: Write the proportion equation
   77,916 : 107,524.12 = 42,105.92 : x
2. Step 2: Convert to fraction form
   77,916/107,524.12 = 42,105.92/x
3. Step 3: Cross multiply
   77,916x = 107,524.12 × 42,105.92
4. Step 4: Simplify right side
   77,916x = 4,527,401,994.79
5. Step 5: Solve for x
   x = 4,527,401,994.79/77,916
6. Step 6: Final answer
   x = 58,106.19